You become may be able to access for Medicare at 65, or earlier if you have a disability or end-stage renal disease

Medicare may be able to access is tied to age first. If you are a U.S. citizen or permanent resident who has lived in the country for at least five years, you can enroll in Medicare the month you turn 65. You do not have to be retired — your job status does not matter. What matters is your age and your immigration status.

If you are younger than 65, you may still be able to enroll. You become may be able to access at any age if you have been receiving Social Security Disability Insurance (SSDI) for 24 months, or if you have end-stage renal disease (ESRD) or amyotrophic lateral sclerosis (ALS). These are the only paths to Medicare before 65.

Enrollment happens through Social Security, not through Medicare directly. You can enroll online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office. The enrollment window opens three months before the month you turn 65 and closes three months after — a seven-month window total. If you miss this window, you may face a permanent penalty on your premiums.

Key Takeaways

  • You become may be able to access for Medicare at age 65 if you are a U.S. citizen or permanent resident who has lived in the country for at least five years.
  • You can enroll in Medicare before 65 if you have been on SSDI for 24 months, or if you have ESRD or ALS, regardless of age.
  • Enrollment happens through Social Security during a seven-month window: three months before your 65th birthday through three months after.
  • Missing your enrollment window can result in a permanent increase to your Part B and Part D premiums, so timing matters.

How the 24-month SSDI rule works

If you are receiving SSDI, Medicare may be able to access does not start the day you are approved for disability. Instead, you become may be able to access 24 months after your SSDI payments begin. Social Security counts from the first month you received a disability payment, not from the month you applied.

Social Security will contact you automatically when you reach 24 months on SSDI. You do not have to do anything — you will receive a notice in the mail explaining your Medicare options. However, you can also call Social Security at 1-800-772-1213 to confirm your exact may be able to access date if you want to know sooner.

Once you are may be able to access, you still have to enroll. Enrollment is automatic for people already on Social Security retirement benefits, but SSDI recipients must enroll themselves. You can do this online, by phone, or at a local Social Security office.

ESRD and ALS: when ready may be able to access at any age

If you have end-stage renal disease, you become may be able to access for Medicare the month your dialysis or kidney transplant begins, regardless of your age. You do not have to wait for any period of time. The same applies if you have been diagnosed with amyotrophic lateral sclerosis (ALS) — you become may be able to access when ready upon diagnosis.

For ESRD, Medicare coverage begins the month dialysis starts or the month of a kidney transplant, whichever comes first. If you are already on a transplant waiting list but have not yet had surgery, you are not yet may be able to access. Coverage begins only when the transplant actually happens.

For ALS, you become may be able to access the month you are diagnosed. You will need medical documentation of the diagnosis to enroll. Contact Social Security to begin the enrollment process once you have your diagnosis confirmed in writing.

What happens if you miss your enrollment window

If you turn 65 and do not enroll in Medicare Part B during your seven-month window, you will face a permanent penalty. The penalty is 10 percent of the standard Part B premium for each full year you were may be able to access but not enrolled. This penalty stays on your account for life — it does not go away after a few years.

The same penalty applies to Part D (prescription drug coverage). If you go 63 days or longer without creditable drug coverage, you will owe a penalty when you finally enroll. The penalty is 1 percent of the national average Part D premium for each month you were without coverage.

There are limited exceptions. If you had employer health insurance while you were working and you were covered under that plan, you may not owe a penalty. You will need to show proof of that coverage — usually a letter from your employer or former employer stating the dates you were covered. This is called "creditable coverage," and it protects you from the penalty if you enroll within eight months of losing that coverage.

Enrollment timing and when coverage starts

Your enrollment window is seven months long: it opens three months before the month you turn 65 and closes three months after. If you turn 65 in June, your window runs from March through September. Enrollment that happens during this window takes effect on the first day of the month you turn 65.

If you enroll after your initial window closes, your coverage will not start until the first day of the month after you enroll. For example, if you turn 65 in June but do not enroll until November, your coverage begins December 1. This delay is another reason to enroll during your initial window.

If you are already receiving Social Security retirement benefits when you turn 65, you are enrolled in Medicare Part A and Part B automatically. You do not have to do anything. Part A (hospital insurance) and Part B (medical insurance) both start the month you turn 65. You will receive a Medicare card in the mail before your coverage begins.

Permanent residents and citizenship requirements

You must be a U.S. citizen or a lawful permanent resident (green card holder) to be may be able to access for Medicare. If you are a permanent resident, you must have lived in the United States for at least five consecutive years. Time spent outside the country breaks the five-year count, so you cannot straightforward add up five years of residence if there were gaps.

If you are a citizen, there is no residency requirement. You can enroll in Medicare at 65 even if you have lived outside the country for years, as long as you are a U.S. citizen.

If you are not yet a permanent resident or citizen, you are not may be able to access for Medicare. Some immigrants on temporary visas, work permits, or in the process of obtaining permanent residency cannot enroll, even if they are 65 or older. Check your immigration status with USCIS if you are unsure whether you meet the requirements.

What to do before your may be able to access date

Start preparing for Medicare enrollment about three months before you turn 65. Gather documents that show your citizenship or permanent residency status — a birth certificate, passport, or green card. You will need your Social Security number as well.

Review your current health coverage. If you have employer insurance, check whether you can stay on that plan or whether you need to switch to Medicare. If you have a Marketplace plan, you will need to cancel it when Medicare starts to avoid paying for two plans at once.

Make a list of your current medications and the pharmacies you use. When you enroll in Part D (prescription drug coverage), you will want to choose a plan that covers your drugs at a reasonable cost. You can use the Medicare Plan Finder tool at Medicare.gov to compare plans in your area.

Frequently Asked Questions

Can I delay enrolling in Medicare if I am still working at 65?

You can delay Part B enrollment if you have employer health insurance through your job and you are actively working. You must enroll in Part A (hospital insurance) at 65 even if you are working, but Part B enrollment can wait as long as you have creditable coverage through your employer. Once you stop working or lose that coverage, you have eight months to enroll in Part B without a penalty.

What if I was approved for SSDI but my benefits were denied on appeal?

If your SSDI was denied, you do not become may be able to access for Medicare through the SSDI pathway. You would only become may be able to access at 65 through age, or if you have ESRD or ALS. If you are appealing a denial, contact Social Security to understand how a reversal would affect your Medicare may be able to access date.

Do I have to enroll in Part D when I turn 65?

Part D enrollment is optional, but delaying it can result in a permanent penalty if you do not have other creditable drug coverage. If you have no prescription drugs and do not plan to use any, you can skip Part D enrollment without penalty. If you change your mind later, you can enroll during the annual open enrollment period in the fall.

What if I am a permanent resident but have not lived in the U.S. for five years yet?

You are not may be able to access for Medicare until you have been a permanent resident and lived in the United States for five consecutive years. Once you reach that five-year mark, you can enroll at your next opportunity. If you turn 65 before meeting the five-year requirement, you will have to wait until the five years are complete.